Ted Ed- What's that ringing in your ears?

What is tinnitus?

• The perception of noise like ringing or buzzing without an external source.

• A condition caused by excessive exposure to loud noises.

• A type of hearing loss that prevents sound waves from reaching the brain.

• A temporary auditory hallucination that resolves quickly.

How are sound waves typically converted into perceived sounds in the brain?

• Sound waves directly stimulate the brain's auditory cortex.

• Sound waves create vibrations in the ear, displacing fluid in the cochlea, which generates bioelectrical signals sent to the brain.

• The ear canal filters sound waves before they reach the tympanic membrane, which then sends signals to the brain.

• Ossicles in the ear directly transmit sound vibrations to the nerves, bypassing the cochlea.

In most cases of tinnitus, where do the nerve signals that produce the mysterious sounds originate?

• They travel through the ear from an external source.

• They are generated internally by the central nervous system.

• They are a result of vibrations in the tympanic membrane.

• They are caused by fluid displacement in the semicircular canals.

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What is the brain's response when cochlear cells are damaged and the auditory system becomes less sensitive?

• The brain completely ignores incoming sound signals.

• The brain reduces neural activity to conserve energy.

• The brain devotes more energy to monitoring the hearing pathway and modifies neural activity to get a clearer signal.

• The brain generates new cochlear cells to replace the damaged ones.

What does tinnitus reveal?

• How loud music is.

• Your brain is constantly analyzing the world around you.

• How many hairs are in your ear.

• The difference in hearing between your right and left ear.

What is tinnitus like?

• Loud sirens going off at a fire station.

• Hearing animals at the zoo.

• Listening to birds.

• Eavesdropping on your brain talking to itself.